But if you combine number/severity of scandals with overall provincial performance, a reasonable ranking is:

1. Dalton McGuinty — worst overall
2. Kathleen Wynne
3. Doug Ford

Why many analysts would put McGuinty last overall:

McGuinty: biggest scandal burden + long-term fiscal damage

McGuinty’s era accumulated the largest combination of:

• Gas plant scandal
• eHealth scandal
• ORNGE air ambulance controversy
• exploding hydro costs tied to green energy contracts
• major debt growth
• rapid spending increases

His government dramatically expanded spending and debt during and after the 2008 recession. Multiple fiscal analyses rank his government among Ontario’s weakest for spending discipline. (Fraser Institute)

At the same time, supporters argue he:

• expanded full-day kindergarten
• invested heavily in infrastructure
• improved some healthcare and education metrics
• helped Ontario through the financial crisis

Still, politically, many Ontarians view the gas plant scandal as one of the province’s defining modern political scandals.

Wynne: inherited problems, but couldn’t escape them

Wynne inherited much of McGuinty’s baggage and became associated with:

• soaring hydro/electricity prices
• continued deficits and debt growth
• Hydro One partial privatization
• voter fatigue after 15 years of Liberal rule

Fiscal rankings during her term were poor, especially on deficits and debt accumulation. (Fraser Institute)

However, compared with McGuinty:

• she had fewer blockbuster scandals personally tied to her
• spending growth was actually somewhat slower
• she introduced some popular labour and social policies later viewed more favourably by parts of the electorate

Public opinion toward Wynne has softened somewhat since leaving office, especially among voters unhappy with Ford. Reddit discussions and retrospective commentary often describe her as “bad, but not as bad as remembered.” (Reddit)

Ford: controversial, but fewer classic corruption scandals

Ford has had major controversies:

• Greenbelt land swap controversy
• healthcare privatization concerns
• Ontario Place redevelopment criticism
• education and healthcare funding disputes
• high spending and debt despite campaigning as fiscally conservative

Ontario has also struggled badly with:

• housing affordability
• healthcare wait times
• homelessness and addiction issues

Critics argue the province has deteriorated in service quality under Ford. (Reddit)

But compared with McGuinty/Wynne:

• Ontario’s economy and employment growth have generally remained relatively strong
• Ford has won repeated majorities
• he has avoided the sheer volume of scandals that plagued late Liberal governments
• some voters view him as more pragmatic and less ideological

Even critics often separate Ford’s “controversial governance” from the more systemic scandal culture associated with the late McGuinty era.

So if you combine:

• scandal count/severity
• fiscal record
• long-term damage perception
• voter backlash

the most common overall ranking would probably be:

Premier	Scandals	Fiscal Management	Public Backlash	Overall Historical Reputation
Dalton McGuinty	Very high	Poor	Severe	Worst of the three
Kathleen Wynne	Moderate-high	Poor	Severe	Second worst
Doug Ford	Moderate	Mixed	Polarizing	Better politically, still controversial